| Publication Type: | Journal Article |
| Year of Publication: | 1855 |
| Authors: | G. Busk |
| Journal: | Quarterly journal of microscopical science |
| Volume: | 3 |
| Start Page: | 253 and 320 |
| URL: | http://biodiversitylibrary.org/page/13767499 and http://biodiversitylibrary.org/page/13767566 |